Stability Constants for Cadmium Iodide Complexes in Aqueous Cadmium Iodide (298.15 K)

Abstract

In order to interpret the transport properties of aqueous cadmium iodide, the concentrations of free ions and complexes (CdU'n; n = 1,2, 3,4) were required. For this method the method of Reilly and Stokes was used. Potentiometric data of Bates and Bates and Vosburgh were used and overall stability constants fit, 2.66xl02; fl2, 1.42xl03; /?3, 1.11 x 10s and /?4, 7.71 x 105 were obtained. The concentrations of individual complexes were then calculated for cadmium iodide solutions in the concentration range 0.001-0.50 mol dm-3.